./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60926facf5511174d61dcd6a0b7a731efc9ccdb495bc26b58400da4cd6320ca0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:17,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:17,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:32:17,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:17,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:17,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:17,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:17,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:17,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:17,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:17,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:17,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:17,815 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:17,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:17,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:17,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:32:17,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:17,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:17,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:17,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:17,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:17,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:17,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:17,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:17,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:17,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:17,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:17,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:17,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:17,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:32:17,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:32:17,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:17,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:17,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:17,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:17,832 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:17,832 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60926facf5511174d61dcd6a0b7a731efc9ccdb495bc26b58400da4cd6320ca0 [2023-11-06 22:32:18,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:18,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:18,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:18,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:18,135 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:18,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2023-11-06 22:32:21,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:21,840 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:21,841 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2023-11-06 22:32:21,883 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/data/fe4a1b9a2/5fe7555ece0243b3ad43a4c4d4267c8b/FLAG813a81235 [2023-11-06 22:32:21,901 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/data/fe4a1b9a2/5fe7555ece0243b3ad43a4c4d4267c8b [2023-11-06 22:32:21,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:21,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:21,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:21,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:21,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:21,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:21" (1/1) ... [2023-11-06 22:32:21,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ceaea9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:21, skipping insertion in model container [2023-11-06 22:32:21,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:21" (1/1) ... [2023-11-06 22:32:22,061 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:22,300 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4505,4518] [2023-11-06 22:32:22,309 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4565,4578] [2023-11-06 22:32:23,252 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,253 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,253 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,254 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,256 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,281 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,283 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,286 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,287 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:23,775 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:32:23,777 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:32:23,778 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:32:23,779 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:32:23,781 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:32:23,782 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:32:23,783 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:32:23,784 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:32:23,785 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:32:23,785 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:32:24,195 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,196 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:24,355 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:24,383 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4505,4518] [2023-11-06 22:32:24,385 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i[4565,4578] [2023-11-06 22:32:24,440 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,449 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,449 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,450 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,451 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,457 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,458 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,459 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,459 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,494 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:32:24,495 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:32:24,496 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:32:24,497 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:32:24,498 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:32:24,499 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:32:24,500 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:32:24,500 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:32:24,501 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:32:24,501 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:32:24,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-06 22:32:24,590 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,591 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:32:24,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-06 22:32:24,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:24,985 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,985 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,987 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,987 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,988 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,988 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,988 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,988 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,988 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,988 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,989 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,989 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,989 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,990 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,990 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,990 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,991 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,991 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:24,999 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:25,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25 WrapperNode [2023-11-06 22:32:25,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:25,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:25,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:25,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:25,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,235 INFO L138 Inliner]: procedures = 690, calls = 2659, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 921 [2023-11-06 22:32:25,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:25,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:25,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:25,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:25,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:25,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:25,350 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:25,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:25,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (1/1) ... [2023-11-06 22:32:25,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:25,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:25,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:25,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-06 22:32:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-06 22:32:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2023-11-06 22:32:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2023-11-06 22:32:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 22:32:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:32:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-06 22:32:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-06 22:32:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:32:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2023-11-06 22:32:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2023-11-06 22:32:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:32:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:32:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:32:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-06 22:32:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-06 22:32:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:32:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-06 22:32:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-06 22:32:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-06 22:32:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-06 22:32:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:32:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:32:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:32:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:32:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:32:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-06 22:32:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-06 22:32:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:32:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-06 22:32:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-06 22:32:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:32:25,918 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:25,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:27,685 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:27,693 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:27,693 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:32:27,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:27 BoogieIcfgContainer [2023-11-06 22:32:27,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:27,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:27,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:27,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:27,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:21" (1/3) ... [2023-11-06 22:32:27,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d9855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:27, skipping insertion in model container [2023-11-06 22:32:27,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:25" (2/3) ... [2023-11-06 22:32:27,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d9855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:27, skipping insertion in model container [2023-11-06 22:32:27,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:27" (3/3) ... [2023-11-06 22:32:27,707 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness.i [2023-11-06 22:32:27,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:27,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:32:27,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:27,860 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b8d02e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:27,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:32:27,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-06 22:32:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-06 22:32:27,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:27,934 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:27,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:27,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1837511076, now seen corresponding path program 1 times [2023-11-06 22:32:27,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:27,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887730626] [2023-11-06 22:32:27,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:27,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:32:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:32:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:32:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 22:32:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:32:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 22:32:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 22:32:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-06 22:32:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:32:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:32:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-06 22:32:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:32:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-06 22:32:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 22:32:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:32:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:32:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:32:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-06 22:32:29,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:29,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887730626] [2023-11-06 22:32:29,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887730626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:29,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:29,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:32:29,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073035157] [2023-11-06 22:32:29,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:29,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:29,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:29,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:29,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:29,233 INFO L87 Difference]: Start difference. First operand has 149 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 91 states have internal predecessors, (110), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:32:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:29,970 INFO L93 Difference]: Finished difference Result 297 states and 435 transitions. [2023-11-06 22:32:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:29,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2023-11-06 22:32:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:29,988 INFO L225 Difference]: With dead ends: 297 [2023-11-06 22:32:29,989 INFO L226 Difference]: Without dead ends: 146 [2023-11-06 22:32:30,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:30,010 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 77 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:30,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 168 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:32:30,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-06 22:32:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2023-11-06 22:32:30,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 85 states have (on average 1.2) internal successors, (102), 86 states have internal predecessors, (102), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-06 22:32:30,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 193 transitions. [2023-11-06 22:32:30,079 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 193 transitions. Word has length 120 [2023-11-06 22:32:30,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:30,080 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 193 transitions. [2023-11-06 22:32:30,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:32:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 193 transitions. [2023-11-06 22:32:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-06 22:32:30,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:30,103 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:30,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:32:30,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:30,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1917331222, now seen corresponding path program 1 times [2023-11-06 22:32:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:30,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233275176] [2023-11-06 22:32:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:30,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:32:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:32:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:32:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 22:32:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:30,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:32:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 22:32:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 22:32:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-06 22:32:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:32:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:32:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-06 22:32:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:32:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-06 22:32:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 22:32:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:32:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:32:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:32:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-06 22:32:31,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:31,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233275176] [2023-11-06 22:32:31,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233275176] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:31,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893967558] [2023-11-06 22:32:31,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:31,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:31,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:31,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:31,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:32:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:31,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 2689 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:32:31,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-06 22:32:32,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:32,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893967558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:32,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:32:32,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2023-11-06 22:32:32,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092265915] [2023-11-06 22:32:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:32,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:32:32,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:32,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:32:32,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:32:32,098 INFO L87 Difference]: Start difference. First operand 143 states and 193 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-06 22:32:32,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:32,453 INFO L93 Difference]: Finished difference Result 282 states and 385 transitions. [2023-11-06 22:32:32,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:32:32,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 120 [2023-11-06 22:32:32,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:32,458 INFO L225 Difference]: With dead ends: 282 [2023-11-06 22:32:32,458 INFO L226 Difference]: Without dead ends: 146 [2023-11-06 22:32:32,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:32:32,461 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 208 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:32,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 410 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:32:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-06 22:32:32,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-11-06 22:32:32,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 89 states have internal predecessors, (104), 46 states have call successors, (46), 11 states have call predecessors, (46), 12 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2023-11-06 22:32:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 201 transitions. [2023-11-06 22:32:32,490 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 201 transitions. Word has length 120 [2023-11-06 22:32:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:32,491 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 201 transitions. [2023-11-06 22:32:32,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-06 22:32:32,492 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 201 transitions. [2023-11-06 22:32:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-06 22:32:32,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:32,495 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:32,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:32:32,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:32,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:32,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:32,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1681549893, now seen corresponding path program 1 times [2023-11-06 22:32:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:32,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422238314] [2023-11-06 22:32:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:32:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:32:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:32:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:32:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:32:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:32:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:32:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:32:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:32:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-06 22:32:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-06 22:32:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 22:32:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-06 22:32:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:32:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-06 22:32:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:32:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-06 22:32:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-06 22:32:33,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:33,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422238314] [2023-11-06 22:32:33,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422238314] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:33,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108291498] [2023-11-06 22:32:33,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:33,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:33,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:33,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:33,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:32:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:34,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 2694 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:32:34,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-06 22:32:34,642 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:34,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108291498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:34,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:32:34,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-11-06 22:32:34,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253036241] [2023-11-06 22:32:34,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:34,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:32:34,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:34,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:32:34,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:32:34,646 INFO L87 Difference]: Start difference. First operand 146 states and 201 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-06 22:32:35,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:35,150 INFO L93 Difference]: Finished difference Result 238 states and 331 transitions. [2023-11-06 22:32:35,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:32:35,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 122 [2023-11-06 22:32:35,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:35,155 INFO L225 Difference]: With dead ends: 238 [2023-11-06 22:32:35,155 INFO L226 Difference]: Without dead ends: 146 [2023-11-06 22:32:35,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:32:35,159 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 221 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:35,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 612 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:32:35,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-06 22:32:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-11-06 22:32:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 89 states have internal predecessors, (104), 46 states have call successors, (46), 11 states have call predecessors, (46), 12 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2023-11-06 22:32:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2023-11-06 22:32:35,205 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 122 [2023-11-06 22:32:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:35,206 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2023-11-06 22:32:35,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-06 22:32:35,206 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2023-11-06 22:32:35,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-06 22:32:35,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:35,209 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:35,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:35,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:35,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:35,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1013982917, now seen corresponding path program 2 times [2023-11-06 22:32:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:35,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311994800] [2023-11-06 22:32:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:35,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:32:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:32:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:32:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:32:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:32:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:32:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:32:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:32:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:32:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:32:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:32:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:32:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 22:32:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:32:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:32:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 22:32:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-06 22:32:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-06 22:32:36,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:36,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311994800] [2023-11-06 22:32:36,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311994800] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:36,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013054451] [2023-11-06 22:32:36,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:32:36,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:36,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:36,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:36,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:32:37,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:32:37,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:32:37,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 2302 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:32:37,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-06 22:32:37,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:37,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013054451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:37,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:32:37,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-11-06 22:32:37,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735911359] [2023-11-06 22:32:37,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:37,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:32:37,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:37,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:32:37,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:32:37,181 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:32:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:37,285 INFO L93 Difference]: Finished difference Result 158 states and 218 transitions. [2023-11-06 22:32:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:32:37,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2023-11-06 22:32:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:37,289 INFO L225 Difference]: With dead ends: 158 [2023-11-06 22:32:37,289 INFO L226 Difference]: Without dead ends: 156 [2023-11-06 22:32:37,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:32:37,291 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 17 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:37,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1327 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:32:37,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-06 22:32:37,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2023-11-06 22:32:37,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 93 states have (on average 1.1827956989247312) internal successors, (110), 96 states have internal predecessors, (110), 47 states have call successors, (47), 12 states have call predecessors, (47), 14 states have return successors, (58), 46 states have call predecessors, (58), 46 states have call successors, (58) [2023-11-06 22:32:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 215 transitions. [2023-11-06 22:32:37,314 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 215 transitions. Word has length 126 [2023-11-06 22:32:37,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:37,315 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 215 transitions. [2023-11-06 22:32:37,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:32:37,315 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 215 transitions. [2023-11-06 22:32:37,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-06 22:32:37,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:37,318 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:37,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:37,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:37,527 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:37,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1840062733, now seen corresponding path program 1 times [2023-11-06 22:32:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:37,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749886651] [2023-11-06 22:32:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:37,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:32:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:32:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:32:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:32:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:32:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:32:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:32:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:32:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:32:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:32:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:32:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:32:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 22:32:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:32:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:32:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 22:32:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-06 22:32:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-06 22:32:38,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:38,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749886651] [2023-11-06 22:32:38,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749886651] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:38,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434642550] [2023-11-06 22:32:38,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:38,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:38,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:38,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:38,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:32:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:39,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 2716 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:32:39,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-06 22:32:39,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:39,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434642550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:39,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:32:39,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-11-06 22:32:39,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921183828] [2023-11-06 22:32:39,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:39,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:32:39,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:39,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:32:39,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:32:39,263 INFO L87 Difference]: Start difference. First operand 155 states and 215 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-06 22:32:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:39,687 INFO L93 Difference]: Finished difference Result 301 states and 428 transitions. [2023-11-06 22:32:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:32:39,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 130 [2023-11-06 22:32:39,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:39,691 INFO L225 Difference]: With dead ends: 301 [2023-11-06 22:32:39,691 INFO L226 Difference]: Without dead ends: 183 [2023-11-06 22:32:39,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:32:39,693 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 262 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:39,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 663 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:32:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-06 22:32:39,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-06 22:32:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 110 states have internal predecessors, (127), 60 states have call successors, (60), 13 states have call predecessors, (60), 15 states have return successors, (73), 59 states have call predecessors, (73), 59 states have call successors, (73) [2023-11-06 22:32:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 260 transitions. [2023-11-06 22:32:39,747 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 260 transitions. Word has length 130 [2023-11-06 22:32:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:39,748 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 260 transitions. [2023-11-06 22:32:39,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-06 22:32:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 260 transitions. [2023-11-06 22:32:39,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-06 22:32:39,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:39,751 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:39,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:32:39,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:39,961 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:39,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1072376014, now seen corresponding path program 1 times [2023-11-06 22:32:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:39,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594531145] [2023-11-06 22:32:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:39,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:32:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:32:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:32:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:32:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:44,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:32:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:32:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:32:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:32:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:32:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:32:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:32:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-06 22:32:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 22:32:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-06 22:32:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:32:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 22:32:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:32:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-06 22:32:45,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:45,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594531145] [2023-11-06 22:32:45,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594531145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:45,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129998888] [2023-11-06 22:32:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:45,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:45,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:45,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:45,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:32:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:46,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 22:32:46,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:46,191 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:32:46,283 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 22:32:47,106 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2023-11-06 22:32:49,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2023-11-06 22:32:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 138 proven. 12 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-06 22:32:49,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:32:55,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129998888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:55,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:32:55,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 31 [2023-11-06 22:32:55,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832394191] [2023-11-06 22:32:55,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:32:55,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-06 22:32:55,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:55,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-06 22:32:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=951, Unknown=1, NotChecked=0, Total=1056 [2023-11-06 22:32:55,748 INFO L87 Difference]: Start difference. First operand 183 states and 260 transitions. Second operand has 31 states, 28 states have (on average 3.642857142857143) internal successors, (102), 27 states have internal predecessors, (102), 15 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (38), 12 states have call predecessors, (38), 14 states have call successors, (38) [2023-11-06 22:32:58,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:02,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:07,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:13,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:14,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:15,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:21,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:22,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:23,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:25,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:26,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:27,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:29,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:30,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:32,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:33,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:35,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:41,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:42,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:49,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:50,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:52,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:54,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:57,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:58,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:33:59,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:01,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:02,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:10,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:14,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:16,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:18,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:20,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:22,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:24,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:26,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:27,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:28,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:29,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:31,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:35,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:38,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:39,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:45,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:47,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:49,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:51,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:53,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:55,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:34:57,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:00,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:01,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:02,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:03,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:05,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:08,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:09,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:11,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:13,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:15,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:16,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:18,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:19,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:21,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:22,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:24,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:25,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:26,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:28,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:29,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:31,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:32,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:34,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:36,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:37,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:39,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:41,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:43,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:44,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:45,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:47,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:48,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:50,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:52,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:53,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:55,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:57,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:58,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:35:59,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:00,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:01,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:03,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:05,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:06,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:07,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:09,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:10,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:12,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:13,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:15,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:17,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:18,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:19,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:20,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:36:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:20,772 INFO L93 Difference]: Finished difference Result 730 states and 1054 transitions. [2023-11-06 22:36:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-06 22:36:20,773 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 3.642857142857143) internal successors, (102), 27 states have internal predecessors, (102), 15 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (38), 12 states have call predecessors, (38), 14 states have call successors, (38) Word has length 132 [2023-11-06 22:36:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:20,779 INFO L225 Difference]: With dead ends: 730 [2023-11-06 22:36:20,779 INFO L226 Difference]: Without dead ends: 594 [2023-11-06 22:36:20,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 231 SyntacticMatches, 25 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2467 ImplicationChecksByTransitivity, 52.3s TimeCoverageRelationStatistics Valid=824, Invalid=7151, Unknown=35, NotChecked=0, Total=8010 [2023-11-06 22:36:20,786 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 833 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 5275 mSolverCounterSat, 651 mSolverCounterUnsat, 210 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 6136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 5275 IncrementalHoareTripleChecker+Invalid, 210 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 160.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:20,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1155 Invalid, 6136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [651 Valid, 5275 Invalid, 210 Unknown, 0 Unchecked, 160.8s Time] [2023-11-06 22:36:20,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-06 22:36:20,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 536. [2023-11-06 22:36:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 321 states have (on average 1.1713395638629283) internal successors, (376), 328 states have internal predecessors, (376), 170 states have call successors, (170), 42 states have call predecessors, (170), 44 states have return successors, (203), 165 states have call predecessors, (203), 167 states have call successors, (203) [2023-11-06 22:36:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 749 transitions. [2023-11-06 22:36:20,897 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 749 transitions. Word has length 132 [2023-11-06 22:36:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:36:20,898 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 749 transitions. [2023-11-06 22:36:20,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 3.642857142857143) internal successors, (102), 27 states have internal predecessors, (102), 15 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (38), 12 states have call predecessors, (38), 14 states have call successors, (38) [2023-11-06 22:36:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 749 transitions. [2023-11-06 22:36:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-06 22:36:20,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:20,903 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:20,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c6fc9-d22d-4ae2-8ed4-318d2ec35eb1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:36:21,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:21,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash 836028555, now seen corresponding path program 1 times [2023-11-06 22:36:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:21,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875743479] [2023-11-06 22:36:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:21,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:36:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:36:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:36:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:36:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:36:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:36:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:36:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:36:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:36:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:36:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:36:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat